https://www.phacility.com/phabricator/ I loved using this with my friends.

+1. Phabricator is great and such an underrated software!

It's much more similar to Gitlab than Jira, though, so you might want something more specific. That said, I quite like the way Phabricator handles Tasks and Projects.

looks like google used it way before but nobody was interested (google hangout)